Pith Number

pith:EH7OL656

pith:2022:EH7OL656EUSTTEWHKUS7NXJFRN

not attested not anchored not stored refs pending

Linear port-Hamiltonian DAE systems revisited

Arjan van der Schaft, Volker Mehrmann

arxiv:2211.06676 v1 · 2022-11-12 · math.OC · cs.NA · math.NA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EH7OL656EUSTTEWHKUS7NXJFRN}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T05:15:27.890381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21fee5fbbe25253992c75525f6dd258b54e8fe5ce5b9211748a3643df926459e

Aliases

arxiv: 2211.06676 · arxiv_version: 2211.06676v1 · doi: 10.48550/arxiv.2211.06676 · pith_short_12: EH7OL656EUST · pith_short_16: EH7OL656EUSTTEWH · pith_short_8: EH7OL656

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/EH7OL656EUSTTEWHKUS7NXJFRN \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 21fee5fbbe25253992c75525f6dd258b54e8fe5ce5b9211748a3643df926459e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05bd8dcda294b1cfbe1a2a44ae62688c6b5fde9fb25d7cb9edc97349cbee3d16",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2022-11-12T14:28:20Z",
    "title_canon_sha256": "4bb277d587f0c6f7591b4eec62e9d3fc676096b741a0161b633b79484142bd3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2211.06676",
    "kind": "arxiv",
    "version": 1
  }
}